Slashdot Mirror
Half the Universe's Missing Matter Has Just Been Finally Found (newscientist.com)
An anonymous reader shares a report: The missing links between galaxies have finally been found. This is the first detection of the roughly half of the normal matter in our universe -- protons, neutrons and electrons -- unaccounted for by previous observations of stars, galaxies and other bright objects in space. You have probably heard about the hunt for dark matter, a mysterious substance thought to permeate the universe, the effects of which we can see through its gravitational pull. But our models of the universe also say there should be about twice as much ordinary matter out there, compared with what we have observed so far. Two separate teams found the missing matter -- made of particles called baryons rather than dark matter -- linking galaxies together through filaments of hot, diffuse gas. "The missing baryon problem is solved," says Hideki Tanimura at the Institute of Space Astrophysics in Orsay, France, leader of one of the groups. The other team was led by Anna de Graaff at the University of Edinburgh, UK. Because the gas is so tenuous and not quite hot enough for X-ray telescopes to pick up, nobody had been able to see it before.
"Just been finally found"?
How about "Just been found" or "Finally been found"?
I've been saying for years that "dark matter" and "dark energy" aren't really things. They're placeholders for some type of matter or interaction we'll discover later.
That we're finally able to detect these baryon filaments is a solid step in the right direction to finally solving the "dark" mystery.
Hmm.. So they found half of the missing one. There is still another half missing. That is still a problem.
I wasn't much of a fan of the Dark Matter concept, as it was more or less a magical form of matter. A defuse gas seems to make more sense in my mind.
I also expect as we dig further in the quantum level we will find a lot of the quantum silliness is actually something more comprehensible.
If something is so important that you feel the need to post it on the internet... It probably isn't that important.
The summary wasn't very clear on this, but it may be useful to know that baryons are in fact the category that includes all ordinary matter.
They found some of the missing baryon matter. This is the normal matter that is around us every day. Dark matter is stuff that has momentum and exerts a gravitational field but doesn't interact electromagnetically, so we can't see it. We believe most of the matter in the universe is dark matter but we also believe there is a lot more of the normal baryon matter out there but we just don't know where or what it is. These studies have shown that there are filaments of hot gas stretching between galaxies. The density of this gas is extremely low but the volume it occupies is huge so it contributes to a large amount of the baryon matter in the universe.
If this is confirmed, it is the discovery of the century. A bold claim, but we'll soon know if it is complete nonsense. If it's not, it may take some time to confirm.
now we know
That's where most of the missing stuff in my house is...
Dark matter was a thing till scifi canned it!
It's with my missing sock. Behind the washing machine or with the dust bunnies under my bed.
Cue the "Yo Momma" jokes....
Does that matter exist between stars and not only between galaxies? Can it be used as fuel for spaceships? Inquiring minds want to know.
It only makes sense for something as large as a galaxy in motion to shed a bit during travel. They produce enough of their own light.
Which one of us is going to tell Blue Penguin production company (makers of the "Dark Matter" teevee series) that their show's been found?
I was just about to report it lost and file insurance claims...
sed -e 's/Chuck Norris/Rajnikant/g' joke > fact
The fact that these "filaments" are strung from one galaxy to another suggests they are clinging to or following some kind of structure, no?
When Fascism comes to America, it will call itself Anti-Fascism, and tell you to give up your guns.
or maybe they aren't relevant to what is being discussed? since when is Slashot concerned with gun control in either direction?
this certainly doesn't have anything to do with missing matter in the universe
So by half the matter in the universe, we are taking 2.0-2.3% tops.
http://memory-alpha.wikia.com/wiki/Baryon_sweep ....
Let me know when they are finally able to detect the infinite amount of matter the universe actually has, as well as its infinite everything else.
It was behind the couch along with all the missing cat toys, single socks and car keys. ;)
Anons need not reply. Questions end with a question mark.
They just searched the bottom of every woman's purse.
she would have told them it was behind the sofa,
then we can call out as heretical and persecute anyone who continues to look for another possible answer.
Are these cosmic super-strings? They would act like information conveyors over large time scales between the interconnected galaxies and would have been primed since the early cosmos.
I think that this is the first time the phrase "Has Just Been Finally Found" has been used, ever: https://www.google.com/search?...
as "University" vs "Universe." Good for them. Lol.
I find some of the similarities in James Gates sting theory CRC calculations interesting when compared to the bayron genesis model.
-aw
Would just cool down by emitting IR. Hot gas needs something to keep it hot, like a nearby star.
The article does not make sense.
Hillary lost. Get over it.
Not until he gets his first edition, hardbound copy of "What Happened" signed and put in a display case.
"Because the gas is so tenuous and not quite hot enough for X-ray telescopes to pick up, nobody had been able to see it before."
Does that happen every time somebody mentions baryons?
Baryon.... BARYON!
It's also not half the missing matter. Dark Matter is matter just not made of atomic constituents (protons, neturons and electrons) generally called baryonic matter. Only 4% of the universe is made of baryonic matter which, if the summary is correct and the half of this which was missing has been found this means that only 2% of the missing mass-energy of the universe has been discovered. There is a remaining 25% of the mass-energy of the universe in Dark Matter (which is still matter, just not baryonic) and ~71% which is Dark Energy which is the vacuum energy.
So, I suppose if you just refer to matter alone then ~ 7% of the missing matter of the universe has been found but that is still nowhere near 50%, to claim that much you have to specify "50% of baryonic matter" or find Dark Matter (but in that case it would probably be a lot more than 50% found).
This is the first detection of the roughly half of the normal matter in our universe -- protons, neutrons and electrons
Well technically since ~4% of the universe is made of protons, neutrons and electrons (baryonic matter) and ~25% is made of Dark Matter arguably "normal matter" is, in fact, Dark Matter since it is about 6 times more abundant by mass. Plus the headline is wrong since Dark Matter is matter too so really only ~7% of the missing matter has been found which is a lot less than 50%.
The title says "matter" and whatever Dark Matter is it is most definitely matter so either the reference to "matter" is wrong or the 50% number is wrong because what is described is not the discovery of 50% of the missing matter in the universe, only 50% of the missing baryonic matter.
So there is no missing dark matter.
The Earth is flat and stationary. Michelson-Morley found no motion of Earth, and 18 years later Einstein invented fixed-speed light, curving space, fluxing time, and abolished the ether.
Yet another missing mass story.
We've been getting these hot baryonic threads for years, https://www.universetoday.com/85927/australian-student-uncovers-the-universes-missing-mass/ for example
And the other half... is AOL discs... am I right?
I don't understand how making them illegal would have stopped anything, they already exists.
Making something illegal doesn't magic it out of existence.
You had a good run USA; step aside.
Enjoy your clean coal.
Sorry for the low-effort shitpost... I couldn't resist.
I'm betting some cat knocked it there.
-- Wiccan Army, 13th Airborne Division "We will not fly silently into the night"
... in the last place they left it!
Tracy Johnson
Old fashioned text games hosted below:
http://empire.openmpe.com/
BT
They found dark matter that was half the missing matter that isn't dark matter but was too dark which is why it was missing and that matters but we still haven't found dark matter.
It'll be in the last place they look.
GOTTA LOVE THE NAME!!!!!!
whoa!!!!! my brain just exploded and looks we found half the matter that had been missing
So, > linking galaxies together through filaments of hot, diffuse gas means that the electric universe theory has been confirmed?
EU theory talks about plasma filaments between galactic supergroups, galaxies and stars.
So we have light from the big bang that is going through the gas that it created in the first place and it's really hot gas, but not hot enough to detect. Considering it's been out there for *BILLIONS* of years. They had to use 250,000+ galaxys to show something? Sounds like they're making the data fit the hypothesis.
Look around, it's still missing.
GP AC never mentioned Hillary. You appear to be the one who doesn't believe the election results.
Trump won. Get over it. That means that Trump is responsible for all the idiotic crap coming out of the White House. Clinton is politically irrelevant now, and Trumpistas blaming anything on her is pathetic.
"When you have eliminated the unacceptable, whatever is left, however improbable, must be the truthiness" - Holmes